My high rating is for quality vs. price. So cheap in comparison to more expensive similar products.
Lasts all day on the waterline with my semi-oily skin, and doesn't flake or smear. It does fade "slightly" on flight days, but those are 16 hour days. There is also slight fading on funeral days, which is amazing considering I'm a crier... I just dab my eyes with kleenex instead of rubbing them (or I let the tears simply fall) and the liner stays put.
Don't worry about a bunch of glitter bits in your eyes. There's almost no glitter in all 3 of these colors. I don't even notice it.
I use the Quo Professional angled eyeliner brush (which I love!), so I have no comments on the included brush.
I bought the brown eyes combo and thought I'd only ever use the black one (I'm extremely conservative with colour), but I've actually used them all. Both the purple & brown are fairly dark too, so there's no crazy purple popping colour - and it's kind of fun when I'm wearing purple/pink clothing.